JPH08143255A - Threshold clearance closing device for elevator - Google Patents

Abstract

PURPOSE: To provide such a device that has a simple structure and requires a small installation space, fills clearance between a car threshold and a landing threshold, facilitate taking-in and -out of a cart, and makes traveling of the cart smooth. CONSTITUTION: A threshold clearance closing device is provided with a plug plate which is movably provided in the approximately perpendicular direction of a threshold clearance 6, extends approximately parallel to a car floor face 4, at least has one end roughly abutting on a landing threshold 2, and moves between a plug position for closing the threshold clearance 6 and a retreat position for retreating under the car floor, and a drive device 80 which makes the closing plate 16 move between the closing position and the retreat position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator sill gap closing device for filling a gap between an elevator car sill and a landing sill.

[0002]

2. Description of the Related Art FIG. 13 is a sectional view showing a state of a conventional elevator car when it is passing by a trolley. FIG. 14 is a plan view of a conventional elevator car. The positional relationship between a car sill 5 provided at the entrance and exit of the car 3 and a landing sill 2 provided at the entrance and exit of the hall facing the car sill 5 is shown. A fixed gap 6 is provided between the car sill 5 and the landing sill 2 for the car 3 to move up and down.

[0003]

Generally, a carriage 7 is used in an elevator for a bed, a person, or a luggage, but the wheels of the carriage 7 are generally small wheels 8 and 9 and are small in a gap 6. When the wheels 8 and 9 approach each other, the small wheels 8 and 9 are in a depressed state during the interval 6. At that time, it was necessary to push and pull the truck to pull out the small wheels 8 and 9 from the gap 6. The truck 7 sometimes sways when pushing or pulling and the load collapses, and the operator requires excessive force. Further, even if the vehicle falls and does not stop, a large vibration is generated in the carriage 7 when passing through the gap 6, which causes a load collapse or the like.

The present invention has been made in order to solve the above-mentioned problems, and has a simple structure and a small installation space, fills a gap between a car sill and a landing sill, and makes it easy to take in and out a trolley, It also provides a device for smoothing the traveling of the dolly.

[0005]

In the elevator sill gap closing device according to claim 1, the elevator sill gap closing device is provided so as to be movable substantially at right angles to a sill gap formed between a car sill and a landing sill. A closing plate that extends substantially parallel to the floor of the car and moves between a closing position at which at least the tip of the car is almost in contact with the landing sill to close the sill gap and a retracted position retracted under the floor of the car. And a drive device for moving between the closed position and the retracted position.

In the elevator sill gap closing device according to the second aspect, the closing plate is provided on the back surface of the car floor.

In the elevator sill gap closing device according to the third aspect, the closing plate constitutes at least a part of the car floor.

[0008]

In the elevator sill gap closing device according to the first aspect of the present invention, the wheels of the carriage pass over the closing plate that closes the sill gap.

In the elevator sill gap closing device according to the second aspect, the closing plate is stored under the floor of the car when it is not necessary, and emerges from under the floor of the car when necessary.

In the elevator sill gap closing device according to claim 3, the closing plate constitutes a part of the car floor, the car floor and the closing plate are on the same plane, and the upper surfaces of the car floor and the closing plate are It is the same.

[0011]

【Example】

Example 1. 1 is a sectional view taken along the line I-I of FIG. 2 showing an embodiment of an elevator sill gap closing device of the present invention, and FIG. 2 is a plan view showing a state in which a closing plate of the elevator sill gap closing device closes the gap. FIG. 3 is a plan view showing a state in which the closing plate is retracted. FIG. 4 is a view showing a guide rail and a reinforcing rail of the elevator threshold clearance closing device.
IV-IV sectional view of FIG. 5, and FIG. 5 is a component plan view of the closing plate.

In FIGS. 1 to 5, reference numerals 1 to 9 are the same as those in the prior art, and the description thereof will be omitted. On the back surface of the car floor 4, there is a lower beam 10a which is provided substantially in the center of the car floor 4 in parallel with the car sill 5 and supports the car floor 4 from below. Basket floor 4
A mechanism box 11 is arranged on the rear surface of the mechanism box 11 in front of the lower beam 10a. The rear end of the mechanism box 11 is fixed to the lower beam 10a and the front end is fixed to the car sill 5. A rectangular closing plate 16 is provided on the back surface of the car floor 4 inside the mechanism box 11.
There is. The obstruction plate 16 is supported by the notched groove 18a on the upper side of the guide rail 18 which constitutes the side surface of the mechanism box 11 on two sides that are perpendicular to the car sill 5, and slides vertically on the car sill 5. You can Further, a groove 20 is provided on the back surface of the closing plate 16 in the sliding direction, and a reinforcing rail 19 erected on the bottom floor 11a of the mechanism box 11 loosely fits the upper side into the groove 20 to support the closing plate 16 from below. I will guide you.

The closing plate 16 slides vertically on the car sill 5 in a horizontal plane, and when it slides in the front direction of the car floor 4, its tip projects from the gap between the car floor 4 and the car sill 5. The protruding obstruction plate 16 advances to the obstruction position where the tip of the obstruction plate 16 substantially abuts the hall sill 2, and obstructs the sill gap 6 in this state. On the contrary, when it slides backward, the closing plate 1
6 retracts under the car floor 4 and returns to the retracted position where it is completely hidden.

A drive device for sliding the closing plate 16 in the front-back direction is installed in the mechanism box 11. On the back surface of the closing plate 16, a rack 15 with teeth facing downward is fixed in the sliding direction. A drive pinion 12 and an auxiliary pinion 14 that mesh with the teeth of the rack 15 are provided below the rack 15, and the two pinions are supported by a shaft support 21 that is erected from the bottom floor 11a of the mechanism box 11. . The drive pinion 12 is connected to a motor 13 installed on the bottom floor 11 a of the mechanism box 11 by a belt 17, and transmits the driving force of the motor 13 to the closing plate 16. Rack 15 and two pinions 12 and 14, motor 13 and belt 17
The shaft support 21 constitutes a drive unit 80.

The motor 13 is electrically connected to a closing plate advancing switch and a closing plate retreating switch (not shown) provided in the car and in the elevator operating panel at the elevator hall. When the advancing switch is pressed, the motor 13 rotates forward and backward. It is a circuit that rotates in reverse when the switch is pressed.

In the sill gap closing device constructed as described above, for example, when the car 3 is landed and the carriage 7 is desired to be unloaded from the car 3, when the closing plate advancing switch is pressed, the motor 13 is rotated in the forward direction to generate the rotational force. Is transmitted to the driving pinion 12 via the belt 17, the driving force of the driving pinion 12 is transmitted to the rack 15, and pushes the closing plate 16 forward. The closing plate 16 appears from under the car floor 4 and closes the threshold gap 6. . When the user pulls down the dolly 7 from the car 3 and then pushes the closing plate retreat switch, the motor 13 rotates in the reverse direction, and the closing plate 16 is retracted under the floor 4 of the car.

Example 2. FIG. 6 is a motor diagram showing another embodiment of the elevator sill gap closing device of the present invention. The drive pinion 11 is attached to the shaft 113a of the motor 113.
It is a direct connection of two. In the drive device of the first embodiment, the configuration of the motor 13, the belt 17 and the drive pinion 12 may be replaced with this, and the drive pinion 12 directly connected to the motor 113 may be directly meshed with the rack 15 with the same effect. Obtainable.

Example 3. FIG. 7 is a plan view showing another embodiment of the elevator threshold clearance closing device of the present invention. In the drive device for the closing plate 16, the rack 1 according to the second embodiment is used.
5 and the drive pinion 112, the rack 15 is a rack 215 fixed to the lower side of the closing plate 16 with teeth inward.
Alternatively, the drive pinion 212 may be installed so that the shaft is vertical so as to mesh with the rack 215.
With this structure, the closing plate 16 slides forward and backward by transmitting the driving force to both sides, so that the closing plate 16 can be stably slid forward and backward.

Example 4. FIG. 8 is a sectional view showing another embodiment of the elevator sill gap closing device of the present invention. Figure 9
Is a plan view thereof. The car floor 304 has a substantially U shape with a part thereof omitted. The closing plate 316 has the same size as the missing portion of the car floor 304, and is arranged on the same plane as the car floor 304 so as to fill the missing portion. Similar to the first embodiment, the closing plate 316 is supported from the mechanism box 11 by the reinforcing rails 19 and guided by the substantially U-shaped inner side surface of the car floor 304 to slide in the front-rear direction.
When the closing plate 316 slides forward, a hole is formed in the rear side. Therefore, a retractable flexible iron plate 316a is attached to the rear end of the closing plate 316 to close the hole. The support box 330 is provided on the opposite side of the iron plate 316a to the mechanism box 11.
After being turned inward, it is wound by a winding rod 331. The winding rod 331 is always strongly urged in a direction to wind up the iron plate 316a by a spring (not shown) so that the iron plate 316a is stretched with a large tension.

In the sill gap closing device constructed as described above, the step formed by the car floor 304 and the closing plate 316 is eliminated, and the step formed by the closing plate 316 and the landing sill 2 is also eliminated though not shown. If the closing plate 316 is placed on the floor sill 2, the closing plate 316 and the car floor 304.
Since there is no step created by the carriage 7, the carriage 7 can be moved in and out very smoothly. In FIGS. 8 and 9, the iron plate 316 is used.
A groove is formed in the rear of a, and the closing plate 316 and the iron plate 316a
Although it is shown that there is a step at the joint part, the figure is an exaggerated representation of each member, and in reality, the groove and the step are so small that they do not hinder the progress of the carriage at all. . Further, the iron plate 316a can be realized by hard rubber.

The same effect can be obtained by using a shutter 316b as shown in FIG. 10 instead of the iron plate 316a.

Embodiment 5. FIG. 11 is a sectional view showing another embodiment of the elevator threshold clearance closing device of the present invention. A blocking plate 416 having a plurality of joints is arranged in the mechanism box 11 under the car floor 404, and is supported by being sandwiched by a drive roller 412 and a support roller 415 installed in the mechanism box 11. Drive roller 412 and support roller 41
5 is strongly urged by a spring 440 to support the closing plate 416. The drive roller 412 is interlocked with a motor (not shown).

In the sill gap closing device constructed as described above, the closing plate 416 is normally stored under the car floor 4, but when the closing plate advancing switch is pressed, a motor (not shown) is activated. , The cage plate 4 and the mechanism box 11 appear in sequence while bending the joints, and the closing plate 41
6 advances to a closed position where its tip substantially abuts the landing sill 2, and closes the sill gap 6 in a state where the joint is extended so that the emerged portion is horizontal so as not to hinder the movement of the carriage.

With this structure, the elevator sill gap closing device can be housed in a small space under the floor of the car.

Example 6. FIG. 12 is a sectional view showing another embodiment of the elevator threshold clearance closing device of the present invention. This embodiment has the same drive box 11 and guide rail 18 as in Embodiment 1, but in the drive device and support member of the closing plate 516, there are drive roller 512 and support roller 514, and drive roller 512 and support roller 514 and drive A spring 540 is contracted between the bottom floor 11a of the box 11 and the two floors, and the two rollers support the closing plate 516 from below. The driving roller 512 is connected to a motor 513 installed on the bottom floor 11a of the mechanism box 11 by a belt 517, and transmits the driving force of the motor 513 to the closing plate 516.

In the sill gap closing device constructed as described above, since the closing plate 416, the driving roller 412 and the supporting roller 414 are in rolling contact with each other, sliding like the closing plate 16 and the reinforcing rail 19 in the first embodiment. Since there are no rubbing parts and each member does not easily wear down, it can be used for a long time and the maintenance interval is greatly extended.

[0027]

In the elevator sill gap closing device according to the first aspect of the present invention, the wheels of the dolly can be smoothly taken in and out of the elevator car without the wheels of the dolly falling into the sill gap.

In the elevator sill gap closing device according to the second aspect of the invention, the closing plate is protected by being always stored under the floor of the car and is not damaged.

In the elevator sill gap closing device according to claim 3, there is no step between the car floor and the closing plate,
Very smooth trolley loading and unloading.

[0030]

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a threshold gap closing device of the present invention.

FIG. 2 is a plan view showing a state where a closing plate of the threshold gap closing device closes the gap.

FIG. 3 is a plan view showing a state in which a closing plate of the threshold clearance closing device is retracted.

FIG. 4 is a cross-sectional view of a threshold gap closing device.

FIG. 5 is a plan view of a closing plate of the threshold clearance closing device.

FIG. 6 is a diagram showing a case where a motor is directly connected to a pinion.

FIG. 7 is a diagram showing a case where racks are provided at both ends of a slide floor.

FIG. 8 is a sectional view showing another embodiment of the elevator sill gap closing device of the present invention.

FIG. 9 is a plan view showing another embodiment of the elevator threshold clearance closing device according to the present invention.

FIG. 10 is an example in which the rear end of the closing plate is a shutter type.

FIG. 11 is a cross-sectional view showing another embodiment of the elevator sill gap closing device of the present invention.

FIG. 12 is a sectional view showing another embodiment of the elevator threshold clearance closing device of the present invention.

FIG. 13 is a cross-sectional view showing a state in which a conventional elevator car is passing by a trolley.

FIG. 14 is a plan view of a conventional elevator car.

[Explanation of symbols]

5 car sills, 2 landing sills, 6 sill gaps, 4 car floors, 16,316 closure plates, 80 drives.

Claims (3)

[Claims] 1. A sill gap closing device for closing a sill gap formed between an elevator car sill and a landing sill, the sill gap closing device being provided so as to be movable substantially at right angles to the sill gap. Extends almost parallel to the floor of the car,
A closing plate that moves at least the tip between the closing position that substantially abuts the landing sill and closes the sill gap and the retracted position that is retracted under the floor of the car, and the closing plate that is the closed position and the retracted position. And a drive device for moving the same between the sill gap closing device for an elevator. 2. The sill gap closing device for an elevator according to claim 1, wherein the closing plate is provided on a back surface of a car floor. 3. The sill gap closing device for an elevator according to claim 1, wherein the closing plate constitutes at least a part of a car floor.